Finding the Fourth Proportional to 3,546.90, 5,321.31 and 3,488.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.90 : 5,321.31 = 3,488.19 : x
2. Step 2: Convert to fraction form
   3,546.90/5,321.31 = 3,488.19/x
3. Step 3: Cross multiply
   3,546.90x = 5,321.31 × 3,488.19
4. Step 4: Simplify right side
   3,546.90x = 18,561,740.33
5. Step 5: Solve for x
   x = 18,561,740.33/3,546.90
6. Step 6: Final answer
   x = 5,233.23